Yes/No. Even the discount store tents are much better than they used to be ten years ago. Used to be all they carried were very marginal 'pup tent' designs that were overprices for what they were.

Now they have functional and fairly well made domes and screen rooms. Often made by major manufacturers. Sometimes under a pseudonym or store brand. They aren't full featured, 'bombproof' units suitable for long term and extreme conditions. Your not going to be making a summit attempt on K-2 with one but there are quite a few I have seen for less than $100 that are entirely up to short term three-season camping. I even camped with a couple brought by friends. I usually go for a tarp and light bivy but when in Rome...

Even a discount store tent could be quite valuable as shelter and a place to store supplies in the weeks after a major disaster. And if they degrade to uselessness while they are being used they will have served their purpose. At a very reasonable price.