A few flukes, a rule do not make.
There are bound to be table that will restrain themselves. But a lot more will not. So far, as I said, if you followed, I know of 5 tables using floating ASI and four of these are powergaming the floating ASI and one does not. And I know a lot more tables that will not use floating ASI exactly because of the power creep that it can bring. That rules, was toughtlessly implemented in TCoE.
Also, it depends a lot on the DM. A DM that focuses mainly on RP and not on tactical combat might not see the problems that TCoE can bring because the problem might never be apparent. Especialy if combats are staged as story propelers to the next chapter. If a DM is a lot more like me where combat is not a story propeler for the next chapter but is its own thing, these problems will arise quite fast. We did the maths. And we see the results around us and it reinforced our doubts up to the point of confirmation. Floating ASI are not for every tables. I'd even dare to say that they're not for every tables but for a minority.
Also, how long does a character lasts in your games? In mine, a player can expect to make 1 to 3 low level characters at the begining of the campaign as the attrition is quite high. With luck you might make only one and this character might last up to 14th and even 20th level. Most campaigns end around level 14 but some last a bit more. We let the story arise from the survivors, not from the original characters as the begining character might have died way before the campaign ends.