With all these things the answer is somewhere in the middle.
Assuming your interest rate would always be 1% was foolish. That was a complete anomaly and never going to be sustainable. I had limited sympathy when people were complaining about having to go up to 3% because overall that's still quite low. But the speed of recent increases coupled with everything else is undoubtedly hard.
The comparisons with the 1990s are the speed of change. People similarly found what they had expected to pay and now had to find were totally different. Dismissing this as 'but your mortgage was tiny' is unfair. Lots of other things were relatively more expensive. Have a look at an old Argos catalogue and some of the toys/items were almost as much as you'd pay today.
In the same vein saying 'you should have planned for it now' is unfair when so many other costs have increased.
Regional differences are massive. Those in the south east have the biggest mortgages but have also benefitted from the biggest gains in equity. I haven't seen any sympathy for the poor folk who bought flats in Aberdeen and have never seen their value recover since 2008. It does seem to many like these things only matter if they affect certain areas.
It's also very middle class to say things were affordable on one wage. As a child of the 80s I'd say my mum stayed at home, as in she looked after us during the day. But she also cleaned the local supermarket every morning and had a Saturday job. My mother in law gutted fish at the crack of dawn and did a few evenings in the chipper. I don't know anyone whose mother didn't work in some capacity.
Today's standard of living overall is better than the 80s and 90s. People have holidays, meals out, treats that simply didn't exist. However it is built on much greater levels of debt.