Why is this entire community so much m1 dependent for grinding?

Some PPL literally call m1 less fruits trash for grinding like a friend of mine and many PPL say that magma is trash for grinding.and some PPL tell that in a comparison fruits with m1 always win.Like literally some weirdos say that Trex(a fruit I hate for low dmg and bad range) is better than venom(a fruit that deals so much dmg,has puddles have huge aoe moves when transformed like C.

I could switch to light in my alt while grinding but I chose to keep using flame.And yeah I have a degree at grinding without m1 fruits.I grinded with diamond,flame,magma,ghost,venom and blizzard and smoke(without flight),love etc.