I would also point out that a $5 increase on a $30 bill is three times that of a $5 increase on a $90 bill.
Since you brought my dangerous assumptions about channel lineups earlier ...
Before I dropped cable two years ago, I don't remember getting much in the way of new features or channels of consequence with each year's price increase (which often exceeded $5/mo, BTW). If channels were added, it was some startup niche channel, foreign language channel, a sports sub or alternate channel, or an otherwise free OTA channel, like Antenna TV or Me TV. If anything, my regular cable channels were getting moved to higher tiers or special channel packages that required an extra $10-$20/mo. to access.
When YouTube TV raised their prices $5 in March (to $40), they added CNN, TBS, TNT, Cartoon Network, MLB TV, and a few other odds and ends channels I didn't care about, in addition to expanding the number of locals available. (The loss of Sinclair/Tribune-owned channels across the country by various services is a unique, and likely temporary situation, for the OTT live TV services affected by the merger fiasco.)
After PS Vue lost the Viacom channels, they added NBA TV, MLB Network, CBS Sports Network, Hallmark, BBC America, and several others I don't remember now, in addition to expanding the number of locals available.
With DirecTV Now's $5 increase, they've added a DVR (and maybe channels I'm not aware of since I don't pay much attention to DTV Now)
So sure, as a percentage of the price a $5 price hike is a ~10% increase versus a ~5% increase. But when was the last time a cable customer said, "Looks like rates are going up again, but I don't care so much this time because now we're getting the [channel name] or [fancy new feature]"?
I'm under no delusion that prices won't go up over time without as much bling to show for it with OTT live TV services. But why knock these services when you can enjoy the great value while it lasts? They will always be cheaper than cable/sat TV regardless, due to more streamlined channel selections and lack of equipment rental fees, which alone saves me $20+ for just two boxes.