No. Obi-Wan's explanation was ok, but hardly good. Then they doubled down on it by ROTS with Obi-Wan leaving Anakin to burn.I just don't really get why these are criticisms. Luke's fatherhood issues are basically what drive his character, and the cave encounter is hugely important. The whole Obi-Wan lie is a bit harsh, but I think they did a relatively good job covering it with Obi-Wan's explanation, especially since Vader wasn't supposed to be Luke's father at first.
They are criticisms from me because of how the first film framed the conflict. Yes, it added more shades of color to the classic "good vs. evil" story but it does so by framing the good guys as liars and inept. It also has to torture Luke in the process of getting him there. That doesn't make for an enjoyable story of watching the protagonist (and arguably the audience surrogate in ANH) being tortured with ice, and snow, and beasts and amputation. At least, I do not find it enjoyable.