The 25/3 bar was specifically lowered to that so that 4G LTE would meet this bar and they could claim that 99% of Americans now have access to high-speed Internet for political points.
Realistically, if it were up to me, I’d say anything 25/3 and lower is “low-speed”, between 25/3 and 100/10 is “standard speed”, and set the bar for “high-speed” to mean 100/10 or better. Companies should not be allowed to advertise “blazing-fast high-speed Internet” and then it turns out to be 30/3 ADSL for $50 a month