I'm 95% sure point.me does not search the same way as seats.aero or the way cowtool did, based on "inside knowledge".

I just tried a search I expected to trip up points.yeah, and sure enough, it did. 0 results for AC. They claim "Simultaneous real-time search multiple dates on all major bank programs and 21 airline loyalty programs! Unlike others to show your incomplete result or let you wait for more than 2 minutes for just one day result. PointsYeah shows you the full set credit card rewards and flight awards from each of the programs we cover under 20 seconds."

It's not possible to do "simultaneous real-time search multiple dates" in "under 20 seconds" if you're hitting Aeroplan like seats.aero or cowtool (I seem to recall the cowtool timeout was set to 90s or 120s, and even that got hit every now and then).

awardtool.com had the same issue with the exact same search as I tried on points.yeah. No AC results. In fact, trying SFO-YYZ, it returned only fixed-mileage redemptions through AC partners. There were no results for booking with AC, and certainly no dynamic pricing.

So I don't know what they're doing exactly for their "real-time searching", but it's not even clear to me that two of the three you mentioned are actually even searching AC, regardless of what they claim.