I cant say I view it as a negative, at the point you have lost 9 towers and 3 hibis you have earned a loss in a vast majority of games. remember that the nexus is pretty dam close to fountain. Folks running in and out of a safe zone and healing then clearing waves/ reengaging champions is not really interactive gameplay or beneficial for quality of matches. All game long the Defending team is favored almost every situation there's not a large gap between teams so its pretty clear when a match gets to a point they failed to defend every protected non nexus objective or their teams they have not been playing as well as the other team. I love comebacks, but I don't feel a team that's rolled over on almost every single building deserves to have a easy time with one. It needs to be earned, Attrition with fountains just doesn't meet my mark for a proper amount of effort to bounce back.
I feel its worth mentioning this to help explain my Bias more. One thing Riot did different then dota Allstars is they allow respawning for inhibitors, used to be minion buffs where forever in the game, break a barracks its gone never to return. So comebacks in lol are a lot easier comparatively to the moba I started with. Your rarely going to see to many matches where a team wins off 3 hibis that they really needed all 3. Its often done just as a precaution by the winning team to prevent a undeserved comeback. Plenty of matches will end because of an ace into final push with some lanes having 2 towers still standing.
My feelings here are that the 3 inhibit strategy is a good option for a viable win condition, it alone is not inherently oppressive, your team has to destroy 12 objectives for it to work. If the games close its not set in stone from it being accomplished and if the games to one sided odds are you wont actually see it happen regardless. You can still comeback, you can win with 3 down, its hard but not impossible. It locks you into your base but most the time hibis respawn at different rates so you can have one rez, they minions drop down in #s and your team has a obj they need to keep up. How ever when you lose all 3 at the same time, that's when its the most oppressive, and frankly you deserve the loss from it because at that point your entire team is incapable of defending a single non nexus objective and you should never be rewarded for that.
As I mentioned my view point on this is very much influenced by my Wc3 days where you could single handedly turn a match off a good back door into building destruction because that created Permanente pressure till the game ended. Lol your on the defensive but its only till a respawn. With league if hibis are lower in value many champions are gonna drop off in viability cuz they stand out for their ability to siege.
TLDR. A comeback with 3 dead hibis should only ever be possible in a very close game. In Most games that are onesided, that you have also gone and lost all 12 objectives, it probably could have been ended sooner as it shows a team was able to consistently pressure objectives. A team doing 12 with that much of a lead is either fearful of fountain plays due to enemy comp, or does not intend to play haphazardly and they are dedicated and focused on winning the game, which hey the have been doing all game and have been better about it then any one they are vs.
Also most the time 3 hibis are down its not even the first time some of those hibis went down so its failing 13+ times to protect objectives, its most painfull when all drop at once but if your teams incapable of fighting in your own base with out having to resort to fountain your really not playing well enough to warrant the ability to come back, or your teams made a game losing mistake prior to the hibi clear.