Many of these creatures have powerful secondary abilities including creating additional creature tokens (Bladewing, Death Tyrant, Feldon, Kari Zev, Krenko, Mardu Strike leader), drain/life loss (Calculating Lich, Hellrider), direct damage (Combustible Gearhulk, Dreadhorde Butcher), anthem/buff effects for your army (Drana), card draw/free spells (Etali, Florian, Garna), additional combat step (Moraug), and many more
and Lorehold, as I mentioned, just has a dude wearing a statue, which contravenes the No Sapience rule
Its basically the Magic communitys quick way of saying no matter how scary a creature looks, you can still take it out with cheap removal, if it doesnt offer any value right away
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In the meantime, watch out for all those pesky faeries
Its also quite helpful that land tutors like Prishe's Wanderings and Reach the Horizon grab towns directly