I guess it depends on you & your spouse’s propensity for risk. Sounds like they are about to quit for reasons outside your RTO anyway so that makes it easier.
Plano/Dallas is as good a place as any to raise a family & work. Many (diverse) job opportunities for anyone in tech, finance, healthcare & education compared to other cities. Also a central location with two airports-so easy/cheaper to fly anywhere within country & international. There are Public transportation options, however you do need a car for everything-including getting to the train station/bus ride & go points. (Yes, there are the homeless always, but plenty office workers so you’ll have white collar company on train/bus.) T salary and benefits are decent, and there is transparency to a certain point.
Here’s a few questions that you’ll need to ask yourself: Are you willing give up local family, friends & community for new possibilities? Does the Texas/Dallas politics align with your beliefs? Are you comfortable with the cultural demographics which has changed in the last 10-20 years? The schools are good, but highly competitive: Will your children thrive in this environment? Homes are expensive, can you afford a lifestyle of your choice on one salary until/if spouse goes back to work? Are you comfortable looking for a job if you’re surplussed/can you survive on no income until one of you is employed? Ate you ok with a possible long commute? Are you ok working in a place that is clearly trying everything relentlessly every month to reduce workforce? And also deal with a workforce whose culture & mindset is being shaped by these actions? If you’re younger, you’ll find more optimistic people & viewpoints btw. So take all this into consideration.
Meanwhile, you’ve found another job with slightly less pay but also less commute until you find a better job/flexibility. Likely you can find another job if you try regardless of where you are, so you have that in your court.
No wrong choice here @OP. But many would envy your position: flexible to move or not, family support, another job choice, an opportunity to get out or fully embrace the opportunity to continue albeit with no guarantee whatsoever at T.