Yes. According to Chinese sources, the commanding officer from the Indian side was recently transferred from Kashmir and is a bit of a hot head. Nothing like this has happened before.If that the case, then it unbecoming of Indian. You don't attack envoy or negotiator even if it from an enemy force.
One cannot build a whole infrastructure network to support some 70K the following day. It's more of a engineering problem than manpower when it comes to a mountainous region, hence it has little to do with paving an ordinary motorway or some railway construction. Sending the workforce after a supposed force amassing is another evidence how India neglects the logistics in general. We have numerous examples to support this assumption.Yet they have deploy around 232 tank on ladakh alone along with artillery brigades and more than 70,000 troops. along with all the necessary infrastructure to sustain a long campaign. no attrition is happening over Tibet. This is one fight PLA aint winning without a bloody nose. no matter what cheerleaders like to think.