Its quite simple isn't it? A group of people were watching the show for 9 months, 5 days a week before Bajaj was introduced. What ever Ekta said or did or what the people who continued to watch the show thought about it does not matter at the end of the day.
When you watch a show continuously for that long obviously they would have attachment to characters they have been watching. Those who didn't have an attachment left the show as some on this thread are saying. Then why does the question arise as to why this same group who watched the show for this long are resisting if the characters they were attached to are being paired with different people arise?
And the show is there till now BECAUSE a group of people found something interesting in it to stick to it this long. If Ekta wants to put the burden of the show on new leads it up to her to build it up. She has to have faith in her audience and new audience to despite resistance of old fans.
And do you really think Ekta did nothing to encourage these same people to keep watching giving them hope that there is a chance there would be no third angles involved. Infact she used every deity out there to encourage Anupre fans to think their union is destined and sacred and protected by once in 200 year auspicious occasions and what not?
If you play with fans feelings for 9 months they will resist too...Sorry but Ekta can't have the cake and eat it too.