I'd say it's fairly accurate although the average Texan has views that are closer to the average American than the average Albertan has to the average Canadian
In short Alberta is more of a outlier politically but culturally and philosophically it's similar to Texas
I actually don't think Alberta on issues is that much of an outlier. Quebec is probably more distinct. I think voting patterns give false impression Alberta is far more conservative than it really is. Federally its votes Conservative more due to regionalism. Provincially, PCs were a big tent party and quite moderate. Yes UCP is a lot more right wing, but Kenney is trailing badly in polls and likely a one term wonder so I think Alberta being quite right wing is more a stereotype than reality. Rural Alberta yes is very conservative, but two main cities much less so.