No - the research is about people's attitude and actions around donations. It doesn't matter who or what you donate to - the act of donating right now is the indicator of whether you will donate in your lifetime.
If you have committed to donating your estate to charity by putting it into your will, good for you! But if you haven't already committed to this by putting it into your will, then you (at this point in time) reinforce the research - which is people always promise/intend to donate, but they have excuses to delay donating till some point in the distant future which result in them never donating in the end (so in this case, I'll donate my estate when I die).
If you have committed to donating your estate to charity by putting it into your will, good for you! But if you haven't already committed to this by putting it into your will, then you (at this point in time) reinforce the research - which is people always promise/intend to donate, but they have excuses to delay donating till some point in the distant future which result in them never donating in the end (so in this case, I'll donate my estate when I die).