1. Because taxpayer's money is being utilised to build the coaches. If something is being under-utilised, taxpayers have definite right to question it.
2. HS didn't cater to middle class people, whom it was intended for (at least not as much as it was expected to). It is not late even now. IR can make amends and make it more accessible for the middle class.
Please shed the thought that people should not question the government for its action. Please realise questioning, discussion and debate are integral part of our democracy.