Yeah, the whole point of the Ewoks is that they were underestimated and yet overcame a vastly superior force, mostly by exploiting that underestimation with ambushes and knowing their own territory better than the invaders.
Also, Star Wars is and always was first and foremost for kids and I haven't met a kid Star Wars fan that didn't love the Ewoks.
The earlier version of this idea from one of the "Luke Starkiller" drafts was actually much less credible. It had the (stone age tech) Wookies being taught how to fly starfighters in a very short span. And people think the idea of Ewoks taking down walkers with logs is unlikely!
Also, Star Wars is and always was first and foremost for kids and I haven't met a kid Star Wars fan that didn't love the Ewoks.
The earlier version of this idea from one of the "Luke Starkiller" drafts was actually much less credible. It had the (stone age tech) Wookies being taught how to fly starfighters in a very short span. And people think the idea of Ewoks taking down walkers with logs is unlikely!