It's very much like comparing say, Starcraft with Halo because they're both in space and have aliens.
The only similarity here are just the common things shared from Dekaranger's footage, a dog ranger that is a mentor and an alien
Everything else is different
It's say, comparing Scott to Red Go-Onger because they're both Red Rangers of the Car season. When the two are completely different and separate characters. Outside of that common theme shared due to Sentai footage.
Almost as possible as comparing Call of Duty to Rocket League because they have cars.
While that is exaggerated, common theme isn't exactly a good basis - especially when both of the characters are wildly different outside of just being mentor dog rangers
It's like as I said, perhaps it's the same as Mad Max's video game to Fallout 4, just because both are post apocalyptic. You can compare them, but it's silly to do so.
Should probably do something to make it seem like it my dude