I think there has been unnecessary but inevitable comparisons of this show with its first season but if the name of the show would not have been this and Ekta would have launched this show in another name then there would have been no issues with BALH1 fans and tv watchers in general being skeptical about this show.
If we talk about the story of this season, I think you will agree that apart from the character names Ram and Priya nothing else is same with the show. Now regarding the other plotlines being taken from season 1 if one sees thoughtfully, one must have seen similar tropes like, opposite characters falling in love, step family of lead mistreating him, lead's father or mother remarrying and abandoning the lead, drama of the exes and step siblings in other ITV or EK dramas as well so this is not strictly restricted to BALH1.
It has been said that there are around 4-5 classic stories in the world that are being remade again and again but with different execution style. When BALH1 aired, nobody has done the mature love story ever and EK was known for the OTT dramas in this medium hence BALH1 was a big hit that too for a long time due to it's different concept and execution for the time and chemistry between Ram and Sakshi. I think this season is more about the opposite people falling in love who come from different social strata than about mature love. I think here the mature love will be shown through the mature personalities and not due to the age group.
There also has been unnecessary comparison of Nakul and Disha with Ram and Sakshi respectively which is just unfair as Ram and Sakshi have lot more experienced than Nakul and Disha. Another thing is that their characters are not same at all and neither are their age groups so it makes no sense at all to compare them just becoz this show is named BALH2.
I understand that people who have watched this show it will be natural for them to compare and discuss it with the first season and that is completely alright to do so but it is unfair to not give a chance to this show and write it off completely on the basis of comparison with first season.