To my knowledge, the religious decree about slaughtering goats is the same today in judaism as it was 2,500 years ago.

The reason it's not practiced today is 'just' because the decree also states that you have to perform the sacrifice at the great temple on temple mount. That poses a technical problem, since: 1. The temple was destroyed 2k years back, and there's a pretty famous mosque standing in its place. 2. Religious jews have to do a special kind of purification in order to even be on temple mount, and this purification is impossible at the moment, again for weird technical reasons (they need a red cow, don't ask).

BUT, if there was a temple, and there was a purification rite, religious jews would, in all likelihood, be happily burning offerings 3 times each year.

In short, not as different as you may think.