Used at the right time, this can be a huge blow against an opponent who is strategically saving an action for maximum effect
For the low cost of nothing (at least in terms of card economy), you get a creature that blocks almost all early-game creatures
This is a lot of value for a single, fairly low cost, card to provide
Its a little harder to access an expensive card in a keepable opener, especially as youre going down a card for the benefit, meaning youre effectively down three possible cards
If you want kitchen table MTG, just go with whichever Jumpstart you can get the cheapest
Draconautics Engineer provides a lot of value in an aggressive goblin deck, giving haste to your other creatures, easily becoming a 3/3, and later making a dragon