If there were a large number of states that were well below the 1 vote threshold you may have a point, but there aren’t. In fact even Wyoming isn’t actually affected by the 1 rep minimum. If that rule was eliminated it would still get 1 representative just due to the rounding of 0.76 (how many it deserves) up to 1.
Using 2020 Census numbers from this table, there are 6 states that get 1 representative (ignoring DC and other territories that get a non-voting member). These states have a total population of 4,609,028 so they get a representation for every 768,171 people. California has a 52 representatives for a population of 39,538,223 so one vote per 760,350 people. So relative to California this collection of the least populated states is actually very slightly underrepresented.
ETA: Looking more carefully at the table, I think I may be comparing 2020 census numbers to 2010 apportionment so the actual totals may be slightly off, but the larger point still stands.