Yes
Where is the profit? If you buy a house and it goes up in value everything else has gone up - unless you want to sell up and live in a tent.
They made a financial decision that worked out for them.
Yes that is the advantage of buying a house. At the end of the mortgage term you own it and do not pay rent/mortgage.
What do you expect for them to apologise to you for buying a house when they could? Should anyone who has own a house with no mortgage have to apologise.
I do not agree that they should. get tax credits however.