Well before we start arguing over whether DX1 should or shouldn't be used for apps, let's not forget that Mark has already answered this saying that there is a way NOT to have to use DirectDraw at all in your compiled BlitzPlus app.
Therefore, if you want to write an application designed for such computers (even though hardly many early-95 computers are used anymore) then you can do that in B+. If you want to write a 2D Windows game that will run on pretty much any computer belonging to someone that wants to run a game at all then you can do that too. Mark even said that his own blitting commands are notably faster than the Windows GDI Bitblt stuff.
Therefore, if you want to write an application designed for such computers (even though hardly many early-95 computers are used anymore) then you can do that in B+. If you want to write a 2D Windows game that will run on pretty much any computer belonging to someone that wants to run a game at all then you can do that too. Mark even said that his own blitting commands are notably faster than the Windows GDI Bitblt stuff.