What if Minion Dematerializer could be used on friendly minions?

Assuming you use it to deny a Cannon minion in laning phase and you deny the enemy laner the first 6 cannon minions that spawn, you're still denying around 270 gold from the enemy. Sure that isn't alot in itself, but alot of runes usually provide about 300-400 gold GENERALLY speaking, denying 270 gold from your enemies isn't actually all too bad.

Maybe adding one or two more dematerializer, and this rune would be on par with the amount of gold other runes would give ya. Lets say that you had 8 dematerializers instead of 6, you can take this rune to either deny around 360 gold from your opponent, or if you're in a lane where you wouldn't be able to farm because of zoning, you could at least guarantee yourself 8 cannon minions worth the same amount to yourself.

All the numbers that i have provided rounded down the cannon minions value from 45.5 down to 45 flat as well as ignoring the fact that cannon minions gold value go up 0.5 every 90 seconds, so the numbers i provided are lower than what would actually happen in a game.

TL;DR compared to most other runes in general, denying 6 minions is kinda on par with the gold value of most other non-keystone runes, it just feels super weak because using it isn't really impact feeling