I read your Post and agreed to some level but would like to reserve my comment here .
Sana and Paras are basically similar nature and they connected instantly and most of the times their opinion matches perfectly and they have same wavelength and are good at judging other contestants and very easy going type unlike Mahira and SID .Paras choose Mahira due to her loyal nature and definitely it didn't go well with Sana and she shifted her focus.
Only difference is PARAS and Mahira are cunning while Sana is not.
As long as Mahira will be there Paras will stick to her and he will conveniently move to Sana later on.That is the reason Sid feel like katputli.The way Paras treat and speak to sana is extremely annoying at times still his Jappi and pappi makes her fall for Paras is more for me to digest.
I will blame both Sana and Paras.
Frankly Sid has no other option now because all take advantage of him and I hope he plays alone.One more thing I noticed Sid is extremely warm when wild card enters ..be it Shefali J,Himanshi,Vishal,Bhau,Vikas Gupta..Right now VG undertsand him so he wont feel alone..Hopefully