Alok and Meenu

What your opnion about Alok and Meenu's step to hide the truth?...i think they were right...the whole purpose of this sceret was to keep Ira in good health and it would have been lost if even after few years Ira would have gotten to know the truth plus i dn't think Ira would have been able to love Shiv like her own son as she did all these years