I think I agree. I've always thought the MLB playoffs should be as exclusive as possible, but I think the accomplishment of landing a division title is absolutely worth watering down the Wild Card spot somewhat (plus it's nice that middling markets don't dwindle in August too).
There are downsides, though, like when two Wild Card teams are better than the other divisional winners (see: 2015 NL) and are forced to do the one-game cage match. But the arrangement overall is way more good than bad in my eyes.