So ... the idea is that one can demonstrate/experience a superiority of skill/technique through using a "crappy tool" to do the job?
Of course not. Often one might be asked to work on something when they do not have "a well tuned tool" at hand. Being able to utilize what is less than optimum is sometimes necessary. Part of a craftsperson's technique, imo, is being able to "tune" a crappy tool to do the best it is capable of doing. Another part is being able to sharpen the blade and use the adjustments for best performance on the work at hand.
What is that old saying about a good worker doesn't blame shoddy work on bad tools? Part of that is because a good worker will not put up with a shoddy tool for long before fixing it or replacing it.
If the plane were mine to deal with the sole would be flattened to the best of my ability. That can be a lot of work. If done incorrectly it can make the plane worse. My suggestion for Anuj is to see if a local machine shop can be found to correct the sole.
Anuj mentioned this plane was purchased long ago. Maybe the lesson to be learned in a thread like this is do not purchase something that will sit on a shelf a long time before finding it has a problem. Most likely if this problem arose and was reported within a week or so of purchasing the response from the seller might have been different.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)