Adding/Changing too much too soon

I have been playing LoL since Season 3, and am currently in mid plat elo. I'm no pro at this game, but I feel like riot is changing too much too soon.

This game currently does not support solo queue. If I am planning on climbing I am not playing solo q and only playing with a trio. I am constantly getting matched up against 3 or 4 man teams. Then you have to look at the champions, there are so many OP champs now. It's actually ridiculous. Sure any champ has what it takes to win/etc, but in lower elo, where the majority of this game plays (silver 4/5) It's kind of broken. Today I was playing a game in silver 5 smurfing, I was playing ashe, against a jhin. I was up 120 cs, to 70. I had IE & Zeal 2 levels up on him and he only had a BF.... and for whatever reason he was out damaging me in trades.

I know change is good, adding new items, updating old champions, adding new champions in. But to do it all at once is a fucking clusterfuck. It's how it always is, change so much shit at once, realize how broken it is and everyone has to wait until next patch for a fix.

I'd like to know the end game of league. if this game continues on for another 5-10 years, which it might because of eSports, are you planning on adding more and more champions? Is there going to be a list of 500 champions that everyone has to learn to even stand a chance to make it out of silver?

It honestly feels like a bunch of people sitting around throwing random ideas out, and just implementing them in without testing it. What the hell is going on in PBE?

Sorry I'm salty af right now.