That's the cynical take, and it's been said about 9/11 as well. I don't think it's actually true in either case - but it's impossible to say with 100% certainty.
Oct 7th was during an election after Bibi started to directly take power out of Israeli courts.
It makes very little sense for George Bush to try to create a problem so far away from reelection.
That being said, it's a bit conspiracy theorist to blame Bibi without evidence. But if any evidence came up, the timing and overall political environment makes more sense.
I think if the war didn't happen, they would have targeted high-profile people all at once, but with minimal collateral damage, leaving the rest of the pagers un-triggered.
I hope you got convinced.