I think there are a couple of reasons for the reactions here:
1. By using Einstein's name in your marketing, you're using the name of a scientist who worked for a university whose ostensible mission is to create and disseminate knowledge for the public good. By contrast, you're seem to be running a small investment firm.
2. If we accept that you're looking to make a financial investment in a company, the amount of money that you're offering is astoundingly low given the terms that you propose. Yes, if someone doesn't like your offer, they don't have to accept it. However, at the same time, you seem to be targeting people who don't know how to obtain their own money, which suggests young and naive. From that perspective, your investment seems exploitative.
Candidly, from my own personal opinion, these sort of arraignments are not OK. Learning to run a business is hard, but in my opinion, ultimately rewarding. Offers like these attempt to normalize a behavior that experienced business people would scoff at. Unfortunately, $5k is not going to pay many bills. If I'm in a position to take advantage of the networking that you imply, that means that I already need to have enough money to support myself until the business gets off the ground. If I have that much money laying around, then I'm already a good position to make a go at business and giving up that much equity is exploitative.
Further, there are details implied in the offer that are generally not good for a new business. Equity means I need to have shares, which probably means an S-corp or a C-corp. Most starting businesses should probably file as a sole-proprietorship (as an LLC or not) because the accounting is vastly easier, which means cheaper. How does your arrangement work if someone has a business structure with no shares?
In case someone else asks how to get money for a new business if not for programs like this: There are others depending on where you live. In the U.S., both government SBIR and STTR grants are, in my opinion, good sources of money and don't require equity. A phase-1 grant gives about $80-100k, phase-2 $400-500k, phase-3 low millions. In Norway, I've seen good things from Innovasjon Norge.
Certainly, I appreciate when people try to help others learn business. It just seems like this strategy isn't it.