Tbf, there is often a proportional reward (multiple seasons of good TV being quite a bit longer than the movies that get good).
Also, with how pacing, budgets and casts work in the industry, a movie often ends up having more in terms of emotional investment and new information than an equivalent length of TV. So the effort to watch a movie is not the same as watching an hour and a half of TV (on average).
Same with movies, like how the Venom movies have higher Rotten Tomatoes scores with each installment, despite getting worse as they went along.