too high level vs too high a level

Examples:

• The technical jargon in that article is too high level for me to understand.
• The presentation was too high level for the audience to grasp the key points.
• I prefer explanations that are not too high level, so I can follow along easily.
• The course content was too high level for most of the students in the class.
• The book was written at too high level for young readers to enjoy.

Alternatives:

• overly complex
• too advanced
• beyond comprehension
• too sophisticated
• too difficult to grasp

Examples:

• The students were asked to perform tasks at too high a level for their current skills.
• The project was pitched at too high a level for the investors to understand its potential.
• The language used in the report was at too high a level for the general public to comprehend.
• The questions in the exam were at too high a level for most of the students to answer.
• The discussion was at too high a level for the participants to reach a consensus.

Alternatives:

• overly elevated level
• excessively high level
• unattainable level
• unreachable level
• too advanced a level